<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div id="app">
            <div :style="{color:color1,backgroundColor:backgroundColor1}">{{message}}</div>
        </div>
        <script src="../js/vue.js"></script>
        <script>
            const aaa = new Vue({
                el:"#app",
                data:{
                    message:"hello,guys",
                    color1:'red',
                    backgroundColor1:'blue',
                }
            })
        </script>

</body>
</html>